"The Merino 125 Cool-Lite Sphere III T-Shirt blends 60% TENCEL Lyocell with 40% merino wool at Icebreaker's lightest 125 warmth rating, built to breathe and dry quickly in warm conditions rather than trap heat. Offset shoulder seams keep friction away from the skin, while a drop tail hem and side hem splits add coverage and room to move through a run or a scramble up a ridgeline. A regular fit and updated crew neck round out a tee built for repeat wear across the warmer months. What Our Gearhead® Experts Are Saying:""I've worn this through six-mile trail runs in the mid-eighties, and it never clung to my skin the way synthetics do once I'm sweating. The merino keeps it from picking up any smell, even after I've worn it two days in a row."""